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Has anyone used the fuel mileage tune on their tuner?

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Old Jun 29, 2010 | 03:18 PM
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Default Has anyone used the fuel mileage tune on their tuner?

I've had the 91 tune on since i've got the tuner and i have always averaged around 15-17 mpg. I switched to the fuel mileage tune last month and now i average around 11 to 12 mpg's. Something doesn't seem right...
 
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Old Jun 29, 2010 | 11:40 PM
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it definetly didnt help my millege so i just leftg it on the 81 tune.... I dont notice a diffrence in fuel millage
 
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Old Jun 30, 2010 | 12:21 AM
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I tried it once when I still had the Cortex and I was not impressed. I dropped power and fuel mileage. 91 octane tune is the way to go IMHO.
 
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Old Jun 30, 2010 | 12:56 PM
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I tried it briefly, my MPG stayed about the same. I just stick to the 87 or 91 tunes.
 
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Old Jun 30, 2010 | 01:14 PM
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I noticed the best mileage with the 91 tune. Getting 18 around town and 21 on the highway driving normal.
 
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